Deferred Compensation is an additional retirement savings plan that offers a convenient, tax-advantaged way to save for your retirement. The CalPERS 457 Plan is a voluntary deferred retirement savings plan that allows you to defer any amount, subject to annual limits, from your paycheck.COUNTY OF SACRAMENTO maintains the County of Sacramento 457 Deferred. Compensation Plan (the "Plan"), which generally allows individuals with a balance. What is deferred compensation? The 457(b) Plan ("457 Plan") is a Deferred Compensation plan available to all eligible full-time and covered part-time employees. The CalPERS 457 Plan is a voluntary savings program that lets you defer even small amounts, subject to annual limits, from your paycheck automatically.